One enters wild garden in festival town (7)

I believe the answer is:

reading

I'm a little stuck... Click here to teach me more about this clue!

'festival town' is the definition.
'reading' can be an answer for 'town' (I've seen this before). I am not sure about the 'festival' bit.

'one enters wild garden' is the wordplay.
'one' becomes 'i' (Roman numeral).
'enters' indicates putting letters inside.
'wild' is an anagram indicator.
'garden' anagrammed gives 'readng'.
'i' placed inside 'readng' is 'READING'.

'in' is the link.

Can you help me to learn more?

(Other definitions for reading that I've seen before include "First contribution to educational foundation" , "Oscar Wilde's Gaol" , "Study of literature" , "Where Oscar Wilde penned" , "Understanding the written word" .)

I've seen this clue in The Sun.

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